This is just coming from my experience, I would rather start taking the dose every 6 weeks instead of raising the dose. I wouldn't rush to try Humira because like you said, then that makes one less med you can take. I had to wait a while for my insurance to approve any changes with the doseage/timing of Remicade, so keep that in mind. Plus, my insurance will not cover Humira because it's not approved for UC.
Diagnosed with Left-sided UC in 1995 at age 15,
Prednisone, Rowasa & Hydrocort. Enemas, Proctofoam, Sulfasalazine, Asacol, Probiotics, Fish Oil, Aloe Juice, Canasa, Enotcort, Colazol, Anamantle, Remicade, etc... had almost recto-vaginal fistula in 2004, put on Remicade, August 2007:Increased Remicade dosage-700mg every 6 weeks,diagnosed w/ Psoriatic Arthritis & Fibromyalgia Current meds: Clorazepate, Proctofoam HC, Glucosamine 500, Vitamin B, Lomotil, Tylenol pm, Lyrica started 1/17/08